# num = 3
# def fun():
#     num = 5
#     print('函数内变量num的值：', num)
# fun()
# print('函数内变量num的值：', num)

# num = 5
# def fun():
#    global num
#    num += 1
#    print('函数内num的值：', num)
# fun()
# print('函数内num的值：', num)
#
# def outer ():
#     num = 1
#     def inner():
#         nonlocal num
#         num = 2
#         print('inner函数中num的值：', num)
#     inner()
#     print('inner函数中num的值：', num)
# outer()

# stu = [{'num':'201801','name':'王五','score':89},
#        {'num':'201802','name':'刘军','score':95},
#        {'num':'201803','name':'李梦','score':85}]
# stu.sort(key=lambda x: x['score'])
# for s in stu:
#     print('学号：',s['num'],'姓名：',s['name'],'成绩：',s['score'])
